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Finding the Fourth Proportional to 262,590.60, 394,080.30 and 104,932.20

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Solution

The fourth proportional to 262,590.60, 394,080.30 and 104,932.20 is: 157,475.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,590.60 : 394,080.30 = 104,932.20 : x
  2. Step 2: Convert to fraction form
    262,590.60/394,080.30 = 104,932.20/x
  3. Step 3: Cross multiply
    262,590.60x = 394,080.30 × 104,932.20
  4. Step 4: Simplify right side
    262,590.60x = 41,351,712,855.66
  5. Step 5: Solve for x
    x = 41,351,712,855.66/262,590.60
  6. Step 6: Final answer
    x = 157,475.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.